问题
单项选择题
The meat you bought last week（）terrible. It（）bad.
A. smells; must go
B. smells; must have gone
C. is smelt; must go
D. is smelt; must have gone
答案
参考答案：B
解析：
sth．smells terrible是常见句式，表示某物气味很难闻，可以先排除C、D。 表示对过去行为的肯定推测，用must have done的结构，故选B。